$10 DIY L.E.D. 3rd brake light mod
What you need, 2nd gen 3rd brake light, a dremel, and a hot glue gun or superglue. I got my donor brake light from LKQ for $6 + $2 entry fee, so $8 total. All you need is the brake light with the connector (it plugs right into the 1st gen connector) don't bother with the housing. You'll need to disassemble the 2nd gen brake light, mark the led bar for the neg and pos wires connecting from the circuit board. Unplug and remove the circuit board, this is where it gets a bit tricky, you'll need to use a dremel and grind the little plastic tabs holding the led bar to the plastic. Once the led bar is free you'll need to cut off the metal flanges so that is just a flat bar with the leds, also you'll have to cut off each outermost led from the bar. Now you'll need to disassemble your 1st gen 3rd brake light, carefully remove the red cover (you'll need to reuse it) with a small screwdriver, remove the connector with the bulb and throw it away. Now you can take the circuit board from the 2nd gen brake light (I wrapped mine with electrical tape just to be safe) and feed the connector through the hole where the bulb was, take the led bar and slightly bend the connectors in towards the center and connect the circuit board to the led bar. I recommend wrapping each end of the led bar with electrical tape (you may want to test fitment at this point) and glue it to the 1st gen brake light housing, let it dry, and put your 1st gen brake light back together, plug it in and put it all back together. Now you should have an led 3rd brake light. It took me about 30 minutes to do this project. Good luck and enjoy. 1st Gens RULE!